Home / 125,500.95-173,190.63-68,139.81

Finding the Fourth Proportional to 125,500.95, 173,190.63 and 68,139.81

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Solution

The fourth proportional to 125,500.95, 173,190.63 and 68,139.81 is: 94,032.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,500.95 : 173,190.63 = 68,139.81 : x
  2. Step 2: Convert to fraction form
    125,500.95/173,190.63 = 68,139.81/x
  3. Step 3: Cross multiply
    125,500.95x = 173,190.63 × 68,139.81
  4. Step 4: Simplify right side
    125,500.95x = 11,801,176,621.98
  5. Step 5: Solve for x
    x = 11,801,176,621.98/125,500.95
  6. Step 6: Final answer
    x = 94,032.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.